AECOM

Senior Transportation Planner / Engineer - Travel Demand Modeler

AECOM$90K — $120K *
US-AnywhereRemote in Arlington, VA
Transportation
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Engineering, Transportation Planning, Applied Mathematics, Computer Science, or related field
  • 8 years of hands-on experience in travel demand modeling or equivalent
  • Proficiency with model platforms like Cube, TransCAD, VISUM, or similar
  • Ability to develop analysis routines in Python, R, or C++
  • Experience working with large datasets and model workflows
  • Advanced Excel and data analysis skills
  • Familiarity with GIS platforms such as ArcGIS Pro or QGIS

Responsibilities

  • Develop, calibrate, validate, and apply travel demand models
  • Implement, enhance, and maintain travel-demand models
  • Refine mode choice models and advanced discrete choice frameworks
  • Develop dynamic traffic assignment and multimodal modeling approaches
  • Troubleshoot model and code issues for efficient outputs
  • Support integration of modeling platforms and core software components
  • Lead technical discussions with clients while being involved in analysis work

Benefits

  • Comprehensive medical, dental, and vision coverage
  • Paid time off and leaves of absence
  • Employee assistance program and well-being resources
  • Flexible work options and hybrid work environment
  • Retirement savings plan and employee stock purchase plan
Full Job Description
Job Description

AECOM is seeking a hands-on Senior Travel Demand Modeler to join our Arlington, VA office, supporting a diverse portfolio of transportation planning and modeling projects across the Mid-Atlantic and nationwide. This role is ideal for a technical expert who actively develops, calibrates, and applies models, not just oversees them. You will work within a collaborative team of approximately 10 modelers, contributing directly to model development while guiding junior staff and supporting client engagement. We are particularly interested in candidates with experience in dynamic traffic modeling or Activity-Based Modeling (ABM), and those with a demonstrated interest and capability in software development, such as C++, for high-performance modeling.or similar applications. This is a hybrid work option with a consideration of being remote.

Responsibilities:
  • Hands-on development, calibration, validation, and application of travel demand models (trip-based and/or activity-based)
  • Implement, enhance, and maintain travel-demand models
  • Apply and refine mode choice models and advanced discrete choice frameworks
  • Develop and apply dynamic traffic assignment (DTA) and multimodal modeling approaches
  • Contribute to or develop model components, tools, or extensions in C++ or other high-performance languages, as appropriate
  • Diagnose and resolve model and code issues, ensuring robust, efficient, and reproducible outputs
  • Support integration between modeling platforms, scripting environments, and core software components
  • Lead technical discussions with clients while remaining actively involved in analytical work
  • Provide technical mentorship through code reviews, modeling guidance, and collaborative problem-solving
  • Contribute to automation, performance optimization, and workflow improvements
  • Support proposal development and technical approach writing


Qualifications

Minimum:
  • Bachelor's degree in Engineering, Transportation Planning, Applied Mathematics, Computer Science, or related field,
  • 8 years of directly relevant, hands-on experience in travel demand modeling or demonstrated equivalency of experience and/or education.
  • Demonstrated experience developing, calibrating, and applying models
  • Proficiency and experience with one or more platforms: Cube, TransCAD, VISUM, TRANSIMS, DTALite, DynusT, or similar
  • Ability to develop custom data analysis routines in Python, R, C++, or similar
  • Proficiency and experience with C++ or demonstrated aptitude and interest in developing modeling-related software components
  • Experience working with large datasets and model workflows/pipelines
  • Advanced skills and experience in Excel and data analysis
  • Experience with GIS platforms (ArcGIS Pro or QGIS)

Preferred:
  • Experience with COG/TPB Gen2 Travel Model (trip-based)
  • Experience or exposure with
    • Activity-Based Models (ABM) or
    • COG/TPB Gen3 Travel Model (activity-based)
  • Experience implementing or supporting travel models for MPOs or DOTs
  • Master's or PhD in a related field
  • 10 years of modeling experience with increasing technical responsibility
  • Familiarity with federal processes (NEPA, FHWA/FTA guidelines)
  • Experience with:
    • Tolling and managed lane modeling
    • Big data processing (RITIS, StreetLight, Replica, TomTom, etc.)
    • Cloud environments (AWS, Azure) for model execution
    • Visualization tools (Power BI, Tableau)
  • Professional certification (PE, PTP, or AICP)
  • Hybrid position slightly preferred over remote position
  • Demonstrated ability and interest in software development beyond scripting, particularly (a plus):
    • Writing or modifying core modeling code in C++
    • Improving performance, memory efficiency, or scalability of models


Additional Information
  • Relocation is not an option for this position
  • We are interested in every qualified candidate eligible to work in the United States. Sponsorship may be available for current visa holders in the United States.


At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.

About AECOM

AECOM is a global provider of professional technical and management support services to a broad range of markets, including transportation, facilities, environmental, energy, water and government. With approximately 45,000 employees around the world, AECOM is a leader in all of the key markets that it serves. AECOM provides a blend of global reach, local knowledge, innovation and technical excellence in delivering solutions that create, enhance and sustain the world's built, natural, and social environments. A Fortune 500 company, AECOM serves clients in more than 150 countries and had revenue of $8.0 billion during the 12 months ended March 31, 2014.

AECOM Careers

Join AECOM, a premier global team of professionals dedicated to delivering infrastructure and environmental solutions. At AECOM, we are committed to fostering a culture of innovation, leadership, and diversity, making it an ideal place for ambitious individuals looking to advance their careers.

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Join a company where innovation and leadership go hand in hand. AECOM is a place where you can lead critical projects, influence strategies, and deliver solutions that contribute to our clients' success. Our leadership and diversity training ensure that you have the tools to lead effectively and inclusively, fostering an environment where all ideas are welcomed and explored.

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AECOM’s culture is centered on collaboration and excellence. Work alongside some of the brightest minds in the industry, benefiting from a wealth of knowledge and experience that will enhance your professional development. Our team’s diversity fuels creativity and drives innovation, making AECOM a breeding ground for new ideas.

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Learn more about AECOM
Size
51,000 employees
Market Cap
$11.8 billion
Industry
Net Income
-$200.8 million
Founded
1990
5 Year Trend
-6.3%
Revenue
$13.3 billion
NASDAQ

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